155.56x-4.9x^2=0

Solution for 155.56x-4.9x^2=0 equation:

155.56x-4.9x^2=0

a = -4.9; b = 155.56; c = 0;
Δ = b2-4ac
Δ = 155.562-4·(-4.9)·0
Δ = 24198.9136
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(155.56)-\sqrt{24198.9136}}{2*-4.9}=\frac{-155.56-\sqrt{24198.9136}}{-9.8}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(155.56)+\sqrt{24198.9136}}{2*-4.9}=\frac{-155.56+\sqrt{24198.9136}}{-9.8}
$